Sometimes, all it takes is one person to ruin something that everyone else enjoys. A single reckless decision can lead to new rules, a beloved tradition can disappear overnight, and one selfish move can spoil years of fun for an entire group. The frustrating part is that everyone else often ends up paying the price, even when they had absolutely nothing to do with it. Reddit users recently shared stories about people who managed to ruin things for everybody, and some of them are almost unbelievable. From workplace privileges to pop culture, these examples show how one person can change everything.WikipediaThe Shoe Bomber Ruined Airport SecurityRichard Reid’s failed 2001 shoe bombing attempt led to years of passengers having to remove their shoes at airport security.cnx.cmd.push(function() {cnx({playerId: "106e33c0-3911-473c-b599-b1426db57530",}).render("0270c398a82f44f49c23c16122516796");});UnsplashOne Employee Killed Beer FridaysA worker got drunk during his company’s relaxed Friday beer tradition, and management promptly canceled the perk for everyone.UnsplashSomeone Ruined Secret SantaAn employee complained about the name and spending limit of an office Secret Santa exchange. The budget was lowered, participation fell, and the tradition was eventually canceled.UnsplashOne Guy Got Everyone’s Internet Restrictions TightenedAn employee abused a loophole that let workers bypass web filters using a VPN extension. IT caught on, shut it down, and reprimanded everyone who had used it.UnsplashOne Person Ended a Prom EarlyA student pulled the fire alarm during prom, bringing the entire celebration to an abrupt end.UnsplashA Coworker Ruined an Easy WorkdayA train driver said one colleague bragged on Facebook about getting paid to show up and go home during engineering works. Their manager saw the post, and everyone was subsequently required to stay at the depot for six hours.UnsplashOne Influencer Ruined Hotel KettlesA traveler reportedly used a hotel electric kettle to wash underwear, prompting other guests to question whether the appliances could still be trusted.UnsplashOne Woman Ended a Local Rock Art TraditionA woman reportedly leaned on a rock sculpture while taking a selfie, fell with it, and sued the town. The community’s popular rock stacking activity was subsequently prohibited.IMDbOne Person Spoiled Game of ThronesA Redditor said a friend revealed major plot points from the books after they had watched only the first two episodes. The spoilers killed their interest in watching the series.UnsplashSpoilers Ruined the Harry Potter Book LaunchWhen Harry Potter and the Half-Blood Prince was released, some people reportedly drove past bookstore queues shouting spoilers at fans waiting to buy the book.UnsplashOne Navy Boss Got Facebook BannedA sailor’s commanding officer reportedly used Facebook during deployment and may have exposed the unit’s location. The incident led to a ban that frustrated the rest of the crew.UnsplashOne Person Helped Ruin a Company’s Work CultureRedditors blamed former General Electric CEO Jack Welch for popularizing aggressive corporate practices centered on short-term profits, cost cutting, and mass layoffs.IMDbOne Actor Helped Derail House of CardsKevin Spacey’s misconduct allegations and subsequent departure disrupted the final season of the acclaimed political drama, which had to continue without its central star.UnsplashOne Man Changed How People See a SymbolAdolf Hitler and the Nazi Party appropriated the swastika, a symbol with much older religious and cultural significance, permanently associating it with Nazi ideology and genocide in much of the world.UnsplashOne Person Helped Turn Social Media Into an Ad MachineRedditors criticized Mark Zuckerberg and Facebook’s influence on social media, arguing that platforms increasingly prioritize advertising, engagement, and addictive scrolling over genuine connections.The post 15 Times Everything Was Ruined By Just One Person appeared first on Den of Geek.